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Cardioid Cond. Adapter-mount Gooseneck Mic.


  • Designed for high-quality sound reinforcement, professional recording and broadcasting
  • Superior off-axis rejection for maximum gain before feedback
  • UniGuard™ RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
  • Easy-to-adjust, rugged, small-diameter, alternating gooseneck with virtually no "memory" permits quick positioning into desired shape
  • UniSteep® filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality
  • Accepts interchangeable elements to permit angle of acceptance from 90° to 360°
  • Two-stage foam windscreen yields dramatically improved resistance to P-pops and other breath blasts
  • Direct mounts to any 5/8"-27 stand, or to included threaded mounting flange
  • Operates on battery or phantom power

    • audio technica U857R
    • audio technica U857R
    • audio technica U857R
  • U857R Specifications

    Fixed-charge back plate, permanently polarized condenser
    Polar Pattern
    Frequency Response
    30 ~ 20,000 Hz
    Low Frequency Roll-Off
    80 Hz, 18 dB/octave
    Open Circuit Sensitivity
    - 39 dB (11.2 mV) re 1V at 1 Pa
    250 Ω
    Maximum Input Sound Level
    139 dB SPL, 1 kHz at 1% T.H.D.
    Dynamic Range (Typical)
    115 dB, 1 kHz at Max SPL
    Signal-To-Noise Ratio
    70 dB, 1 kHz at 1 Pa
    Phantom Power Requirements
    11-52V DC, 2 mA typical
    Flat, roll-off
    Microphone: 124 g;
    Power Module: 81 g
    Microphone: 305.0mm X 12.2mm (long X Head Diameter) Power Module: 92.9mm X 18.9mm (Long X Diameter)
    Output Connector
    Integral 3-pin XLRM-type
    Accessories Furnished
    AT8538 power module; AT8153 two-stage foam windscreen


    audio technica support 90_1_U857R_OM.pdf - Operation Manual